Retirement tax questions

That is again what I've heard, but does anyone have any links to official govt guidance on this or opinions from Tax experts?  The bill itself did not seem clear and at this point I haven't seen any "official" word.  Moral of the story, only receiving a deduction on the half position is absolutely not how that thing was sold. Making 15k a year in OT (full time and a half) might result in an extra $600 at end of year. That's not nothing, but it's also much less than they sold to the public.